2017-09-21:* Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response. **2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.
2017-09-21:* Deprecated. The service continues to accept the parameter for backward-compatibility, but the parameter no longer affects the response. **2016-05-19: A comma-separated list of tones for which the service is to return its analysis of the input; the indicated tones apply both to the full document and to individual sentences of the document. You can specify one or more of the valid values. Omit the parameter to request results for all three tones.